check out "Sudoku Adventure" by Eye of Shooga to be released Feb 20th at the iTunes App Store. you can select the level of difficulty on an infinite number of puzzles (yes infinite!). the puzzles are embeded in a really fun and clever multi-level game. check out the video at: http://www.youtube.com/watch?v=B0XRzIk83MM .

I checked your video this is really awesome. It is a good concept about sudoku adventure. If you want to learn some other tips about sudoku and want to play sudoku then you should visit http://www.livesudoku.com It is a good place.